Oscilloscopes have grown beyond basic time-domain tools and are now available with many automatic functions to speed and simplify a wider range of measurements, with an eye on the growing range of wireless specifications....More

Columns

The 2014 International CES was chock full of 4K Ultra HD televisions, of course, including curved, glassless 3D, and organic LED (OLED) versions. There was also the tiny Ozobot and Sixense's MakeVR....More

Ideas For Design

This simple circuit supports charging of NiCd cells at high rates (1C) while avoiding common problems caused by overheating or overcharging which can degrade performance and even damage the cells. The design uses low-cost thermistors and a non-critical, basic op amp, while the article explains how to calculate critical resistor values to match the cell or battery-pack size....More